DQRID : D980427.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/01/1998000002/28/19982359Does not affect quality
more
Subject:
Overview of Automated QA - February 1998
DataStreams:sgp05okmX1.00, sgp15okmX1.00, sgp15okmX1.a1, sgp05okmX1.a1
Description:
Below is an overview from Mark Shafer of the automated quality
assurance results for the February 1998 Oklahoma Mesonet data.
February was a pretty
well-behaved month.  The only alterations to the qa flags I would
suggest are:

1.  BUTL PRES - indicated errors on the first and flagged as warning (2)
on March 17.  No other errors were noted during February, but it
warrants taking a close look at the data.

2.  SPEN BATV - flagged as suspect from the 6th through 13th.  Low
battery voltage may affect the performance of other sensors, so all data
should be used with caution for this site during the seven-day period.


       OKLAHOMA MESONETWORK QUALITY ASSURANCE REPORT
       for the month of February, 1998

       Based upon observations taken at 1800 UTC each day

       Prepared by Chris Fiebrich (chris@mesnet.mesonet.ou.edu)

================================================================================

Note:   It was recently discovered that an error occurred while sending
this
        report a couple of weeks ago. Therefore, most of you never
received it.
        I apologize for this delay.

        February turned out to be another mild month weatherwise.
Average 1800
UTC temperatures were about 50 F for the month -- not bad for February.
The northern 1/3 of the state was quite dry with most stations there
reporting less than 1 inch of accumlated rainfall for the month.  This
contrasts with many 3+ inch totals observed at the southwest and
southeast
Oklahoma sites.

        The monthly averaged fields for February looked quite smooth.
They
did, however, seem to indicate a slight pressure bias at WEBB and a TS30
bias
at A181.

        7 T/RH sensors were replaced across the ARS and MESOnetworks
after
biases were found by on-site meso-comparison tests.  The TB10 sensor at
MCAL
was stolen by a gopher in early February.  No arrests have been made at
this
time.

================================================================================

TAIR (Air Temperature at 1.5 meters):
        Current t-tkts: #1694 ALVA Temperature fell to -64 C.
        Added:          None
        Resolved:       None

TDEW/RELH (RH is measured at 1.5 meters):
        Current t-tkts: #1669 MADI RH sensor reporting -7999 on 3
occassions.
        Added:          None
        Resolved:       #1690 CENT Test probe showed 7% RH error;
replaced.
                        #1691 MCAL Test probe showed 5.4% RH error;
replaced.

WDIR (Wind Direction at 10 meters):
        Current t-tkts: None
        Added:          None
        Resolved:       None

WSPD (Wind Speed at 10 meters):
        Current t-tkts: None
        Added:          None
        Resolved:       None

PRES/PALT (Sea level Pressure):
        Current t-tkts: None
        Added:          #1702 WEBB Monthly QA indicates 0.6 - 1.0 mb
bias
        Resolved:       None

SRAD (Incident Solar Radiation):
        Current t-tkts: #1695 ALVA values dropping well below 0.
        Added:          None
        Resolved:       None

RAIN:   Current t-tkts: None
        Added:          None
        Resolved:       None

TA9M (Air Temperature at 9 meters):
        Current t-tkts: None
        Added:          None
        Resolved:       None

WS2M (Wind Run at 2 meters):
        Current t-tkts: None
        Added:          None
        Resolved:       None

TS10 (Soil temperature at 10 cm under native sod):
        Current t-tkts: None
        Added:          None
        Resolved:       #1604 BLAC Replaced to correct suspected warm
bias
                        #1679 ARNE Replaced after sudden drop in temp.
reported

TB10 (Soil temperature at 10 cm under bare soil):
        Current t-tkts: None
        Added:          None
        Resolved:       #1676 MCAL Replaced after gopher stole probe

TS05 (Soil temperature at 5 cm under native sod):
        Current t-tkts: None
        Added:          None
        Resolved:       None

TB05 (Soil temperature at 5 cm under bare soil):
        Current t-tkts: None
        Added:          None
        Resolved:       #1605 MEDI Old sensor too shallow; replaced

TS30 (Soil temperature at 30 cm under native sod):
        Current t-tkts: None
        Added:          None
        Resolved:       None

-------------------------------------------------------------------------------

                                ARS QA REPORT
-------------------------------------------------------------------------------

TAIR (Air Temperature at 1.5 meters):
        Current t-tkts:  None
        Added:           None
        Resolved:        None

TDEW/RELH (RH is measured at 1.5 meters):
        Current t-tkts:  None
        Added:           None
        Resolved:        #1659 A181 RH reporting above 100%; replaced
                         #1678 A131 Test probe showed 1.2C Td error;
replaced
                         #1681 A146 Test probe showed 1.5C Td error;
replaced
                         #1682 A145 Test probe showed 1.8C Td error;
replaced
                         #1683 A136 Test probe showed 2.6C Td error;
replaced

SRAD (Incident Solar Radiation):
        Current t-tkts:  #1606 A123 Monthly plots show about 75 W/m2 too
low.
        Added:           None
        Resolved:        #1668 A131 Sensor inspected and tested ok

RAIN:   Current t-tkts:  None
        Added:           None
        Resolved:        #1693 A168 Spider and webs cleaned out

TS05 (Soil temperature at 5 cm under native soil):
        Current t-tkts:  None
        Added:           None
        Resolved:        None

TS10 (Soil temperature at 10 cm under native sod):
        Current t-tkts:  None
        Added:           None
        Resolved:        None

TS15 (Soil temperature at 15 cm under native soil):
        Current t-tkts:  None
        Added:           None
        Resolved:        None

TS30 (Soil temperature at 30 cm under native sod):
        Current t-tkts:  None
        Added:           #1701 A181 Long term QA indicates 2-4 C warm
bias
        Resolved:        None
Suggestions: 
Users of these data should obtain the detailed quality
assurance information from ARM.
Measurements:sgp05okmX1.a1:
  • alt
  • prec_amt
  • wvec_10m
  • time_offset
  • pres
  • wspd_sigma
  • wspd_10m
  • wdir_10m
  • tdry_1_5m
  • base_time
  • lon
  • wspd_max
  • wspd_2m
  • rh
  • tdry_9m
  • srad
  • wdir_sigma
  • lat
more
sgp05okmX1.00:
  • Raw data stream - documentation not supported
more
sgp15okmX1.a1:
  • leaf_ind
  • alt
  • tsoil5
  • tsoil10
  • tbare5
  • vbat
  • base_time
  • lon
  • tbare10
  • tbare30
  • time_offset
  • lat
more
sgp15okmX1.00:
  • Raw data stream - documentation not supported
more

Close this window